Geoff
spending too much on rocks
Please add 1074 to my post number.
Member since December 2012
Posts: 446
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Post by Geoff on Dec 31, 2012 14:26:13 GMT -5
I found a new source for FREE ungraded Silicon Carbide! I said ungraded right? These are mechanical seals that we use in some of our tools. Solid silicon carbide. The nut shaped one is two inches across. We can only use them once, so I figure I'll bring them home and ball mill them. I can use my screen stack to sort my own grit. BAHAHAHAHA! ;D
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,562
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Post by jamesp on Dec 31, 2012 17:11:07 GMT -5
A mad man at work go man go! I wonder what other stuff is made of SIC.Pump seals?
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herchenx
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Member since January 2012
Posts: 3,360
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Post by herchenx on Dec 31, 2012 17:20:48 GMT -5
dang
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Post by Hard Rock Cafe on Dec 31, 2012 18:37:12 GMT -5
Good for you!
Chuck
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Post by catmandewe on Dec 31, 2012 22:16:46 GMT -5
Just throw em in the tunbler like that, they should wear down after a while.
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Geoff
spending too much on rocks
Please add 1074 to my post number.
Member since December 2012
Posts: 446
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Post by Geoff on Dec 31, 2012 23:20:56 GMT -5
"Hey, what grade grit are you using?" Two inch.
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hand2mouthmining
spending too much on rocks
Purveyors of California Gem Rock
Member since September 2011
Posts: 495
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Post by hand2mouthmining on Dec 31, 2012 23:26:11 GMT -5
So, do you have an Igor yet, Dr? ;D
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Deleted
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Member since January 1970
Posts: 0
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Post by Deleted on Jan 1, 2013 11:24:13 GMT -5
The first one is new to me and I got a good chuckle out of it. Thanks, What a doll. Jim
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Post by Rockoonz on Jan 1, 2013 14:36:56 GMT -5
Audrey is adorable Geoff, and I'm guessing well loved Your idea is nuts there I said it first HeeHee Lee
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Deleted
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Post by Deleted on Jan 1, 2013 18:27:37 GMT -5
Audrey = keeper! You have a beautiful daughter.
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Post by johnjsgems on Jan 2, 2013 11:42:15 GMT -5
Wouldn't the grit used to make the parts determine whether they would be useful or not? Seems to me if it is a fine grit to start with breaking it up would give you pieces of a fine grit. What holds them together? Are they 100% SC ground to the finished shapes? Then again, the SC is made in big piles and broken up and ground to various size particles. Definitely a maybe.
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Deleted
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Post by Deleted on Jan 2, 2013 13:23:15 GMT -5
Hi John; I just wanted to take a moment to thank you for this profound tidbit! Happy New Year!!
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jamesp
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Member since October 2012
Posts: 36,562
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Post by jamesp on Jan 2, 2013 13:30:51 GMT -5
Could the SC be epoxied?Or some other binder.If it is plastic/resin base it will tell on itself when heat is applied and aromas come forth.Is that what you mean by'What holds them together?' John?Seems like a solid chunk of SC machined down to that shape would be an interesting process.I agree it is probably held together w/something.Are you sure they are not graphite Geoff?
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Geoff
spending too much on rocks
Please add 1074 to my post number.
Member since December 2012
Posts: 446
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Post by Geoff on Jan 2, 2013 14:12:56 GMT -5
Yep, they are direct sintered SiC mirror face seals, but I'll get the data to back it up.
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Geoff
spending too much on rocks
Please add 1074 to my post number.
Member since December 2012
Posts: 446
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Post by Geoff on Jan 2, 2013 14:33:09 GMT -5
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jamesp
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Member since October 2012
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Post by jamesp on Jan 2, 2013 14:46:01 GMT -5
I am interested in the construction of those if it is easy to find out.What is sintered?Sorry i am curious.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,562
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Post by jamesp on Jan 2, 2013 15:46:04 GMT -5
Sintered SiC-Sintered SiC is produced from pure SiC powder with non-oxide sintering aids. Conventional ceramic forming processes are used and the material is sintered in an inert atmosphere at temperatures up to 2000ºC or higher. I looked it up.Sounds similar to making ceramics.It may be a fine powder before heating.Bet it will cut rocks up in a tumbler if your mill it.I copied and pasted that high tech descrip...
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Mark K
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Member since April 2012
Posts: 2,768
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Post by Mark K on Jan 2, 2013 20:27:23 GMT -5
I found a new source for FREE ungraded Silicon Carbide! I said ungraded right? These are mechanical seals that we use in some of our tools. Solid silicon carbide. The nut shaped one is two inches across. We can only use them once, so I figure I'll bring them home and ball mill them. I can use my screen stack to sort my own grit. BAHAHAHAHA! ;D Could you describe this screen stack? I would love to be able to classify grit as I use a lot of it and if I use fine silk screen mesh, I can get some of my finer stuff from the course grinds. I would love to be able to know for certain what I have.
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Geoff
spending too much on rocks
Please add 1074 to my post number.
Member since December 2012
Posts: 446
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Post by Geoff on Jan 4, 2013 0:02:40 GMT -5
Here is a couple of the classifiers being used to sort quartz crystals.
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jamesp
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Member since October 2012
Posts: 36,562
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Post by jamesp on Jan 4, 2013 10:06:40 GMT -5
It looks like a very fine powder fused together. looks like fine grey quartzite.I do not want to be in the tumbler with those sharp fragments. Bet you will have good results.may be easiest to use in coarse step,that where i use 80 percent of all my SiC.
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